Least Common Multiple (LCM) of 173 and 181
The least common multiple (LCM) of 173 and 181 is 31313.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 173 and 181?
First, calculate the GCD of 173 and 181 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 173 ÷ 181 = 0 remainder 173 |
| 2 | 181 ÷ 173 = 1 remainder 8 |
| 3 | 173 ÷ 8 = 21 remainder 5 |
| 4 | 8 ÷ 5 = 1 remainder 3 |
| 5 | 5 ÷ 3 = 1 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 19 and 39 | 741 |
| 18 and 34 | 306 |
| 181 and 191 | 34571 |
| 44 and 17 | 748 |
| 190 and 111 | 21090 |